Patch 4.3: Blizzard's official preview of the End Time heroic dungeon

After the round of interviews about Patch 4.3 last night, Blizzard has released a preview of the first in the upcoming linked, thematic Caverns of Time dungeons that we'll be exploring in our efforts to defeat Deathwing once and for all: End Time. It's a doozy.

Unlike previous CoT instances, this one sends the players into the future after Deathwing wins, to help Nozdormu find the reason he's blocked from accessing the past -- specifically, to the time before the Demon Soul was hidden by Malfurion. Along the way, you're forced to battle various former Horde and Alliance leaders, now reduced to echoes of their former sanity, and then the mysterious, malefic maestro of madness Murozond, an anomaly in the timestream not even Nozdormu can unravel.